How to set up Xiaomi Redmi Note 4: the complete guide from A to Z

The Xiaomi Redmi Note 4 is still one of the most popular smartphones in the budget segment, despite the release of newer models. Its reliability, performance based on the Snapdragon 625 processor and the ability to install custom firmware make the device relevant even in 2026. However, many users face problems after buying a used device or resetting: slow operation, fast battery discharge, unstable Internet. In this article, we will discuss how to properly configure the Redmi Note 4 for maximum performance, security and long-term autonomy.

It's important to understand that setting up your smartphone is not just about activating basic functions, it's also about optimizing your system for your purposes. For example, gamers will need to turn off background processes, and those who take a lot of photos will need to set up the camera and storage. We'll look at all the key aspects, from the first setup after turning on to the developer's finer parameters and power management. If you bought your phone by hand, be sure to check it for viruses and junk from the previous owner, that's going to talk about.

Initial setting after switching on or resetting

When you first turn on the Redmi Note 4 (or reset to factory settings), the system offers you to go through the original setup wizard, which is critical because the parameters you choose determine how the device will work.

• 🌍 Language and region choice: Install Russian (Russia) to ensure that Google services and local applications work correctly. If you choose another region (e.g. China), you may have problems with the Play Market.
• 🔄 Data portability. If you have a backup from another Xiaomi, you can restore it through Mi Account. For Android or iPhone data, use Google Account or third-party utilities (for example, ShareMe).
• 🔒 Set up lock. We recommend setting up P.IN-code or pattern lock – fingerprint on this model is unstable due to wear of the scanner in used devices.
• 📶 Connect to the network. Select your Wi-Fi network and enter your password. If the Internet is not connected, check if the Flight mode is on in the notification curtain.

Once the setup wizard is complete, the system will offer to update the firmware. On the Redmi Note 4, it is not recommended to install updates to the newer MIUI 11 - more recent versions may slow down due to a lack of RAM (2/3 GB depending on the modification). If the phone offers to upgrade to MIUI 12 or 13, refuse or roll back through Settings → About the phone → System Update → Three points → Select an update package.

Optimizing performance and cleaning the system

Redmi Note 4 eventually begins to “brake” due to accumulated cache, background activity of applications and outdated software. To return the device performance, follow the following steps:

1. Clean up cache and debris. Go to Settings → Memory → Clean up and run the scan. Delete unnecessary files, especially from the Download and Cache sections of the apps.
2. Disable AutoRun. Many applications run automatically and consume resources. Go to Settings → Permissions → AutoRun and disable autoboot for unnecessary programs (such as games or social networks).
3. Background activity restriction. In Settings → Battery → Selecting the mode set Energy Saving – this will limit the background operation of applications.
4. App updates. Go to Play Market → My apps and update to the latest versions. Outdated programs may conflict with the system.

If after cleaning the phone still brakes, check the loading of the CPU.

1. Install the CPU Monitor app from the Play Market.
2. Run it and see which processes are loading the processor more than 50%.
3. If the system application (e.g. com.miui.daemon) is to blame, try to roll back to an older firmware.

Warning about cleaners: don't install applications like Clean Master or CCleaner, which often cause the brakes themselves by consuming resources in the background. MIUI already has all the necessary cleaning tools built in.

⚠️ Note: If you bought a used Redmi Note 4, be sure to complete a reset via Settings → Additionally. → Recovery and reset: Previous owner could have left a tied Mi Account that will lock the phone after reset! check before buying if the account is untied.

Battery settings for maximum autonomy

One of the main problems with the Redmi Note 4 is that it's running out of battery life, especially if the battery is already worn out. The average battery life on this model is 3-4 years, after which the capacity drops by 30-40%.

• 🔋 Battery calibration: If the phone shows an incorrect percentage of charge (e.g., abruptly switched off by 30%), calibrate: Discharge the phone to automatically turn off. Charge to 100% without interruption (use the original power supply). Repeat the cycle 2-3 times.

Optimizing charging

Communications management

4G

3G

Settings → SIM- Maps and Mobile Networks

NFC

Bluetooth

Dark subject.

Settings → Display → Dark theme

Redmi Note 4

For advanced users: in Settings → For developers (how to enable – see the next section), you can limit background processes.

• Limit background processes → set a maximum of 2 processes.
• Do not keep active → turn on that applications close immediately after folding.

Now, the main settings menu will be a Developers item, and here are the most useful options for the Redmi Note 4:

• 🚀 Accelerate animation. In the section For developers, find: Animation of windows → Off or 0.5x Animation of transitions → Off or 0.5x Animation scale → Off. That'll make the interface more responsive.
• 🔄 Forced. GPU-Rendering. Enable Forced Use. GPU — This will unload the processor when rendering graphics (useful for games).
• 📡 Background data restriction: Enable Background Traffic Restriction to prevent apps from stealthy Internet.
• 🔒 Debugging by USB. Turn on Debugging. USB, If you plan to connect your phone to a PC for firmware or diagnostics.

Caution: Not all settings in developer mode are safe, for example, turning on Do Not Stay Active can lead to loss of unsaved data in applications, and changing the DNS without knowing it can lead to Internet problems.

Set up the network and the Internet for stable operation

Internet issues on the Redmi Note 4 are often due to incorrect network settings or outdated communication modules.

Mobile Internet (3G/4G)

• 📶 Select the network. Go to Settings. → SIM-maps and mobile networks → Preferred network type and install: 4G (preferably)/3G/2G — if you have good coverage 4G. 3G/2G — if 4G unstable or quickly drains the battery.
• 🔄 APN-If the Internet is not working, check the access points (APN). For most Russian operators, automatic setting is suitable, but sometimes you have to enter parameters manually: MTS APN: Internet.mts.ru Username: mts Password: mts

Wi-Fi

• 📡 Range Selection: If your router supports 5GHz but the connection is unstable, switch to 2.4GHz in router settings. Redmi Note 4 works better in 2.4GHz band.
• 🔒 Static IP. If Wi-Fi is often turned off, assign a static phone IP in the router settings or in the settings → Wi-Fi → Additionally. → Static IP.